Electric motor.



INVENTGR m ma im UNITED srAfga's PATENT SAMUEL L. NICHOLSON, oEPrrfrsBURG, PENEsYLvANit. assistanat@ WEs'riNeHoUsE ELECTRIC a MANUEAorUaiNe nostrana, @este RATION OF PENNSYLVANIA.

Lg'cTn'lo 'MoToFL Ententes?. Elec. tq,I

soN, a citizen .of the United States, and a resident of Pittsburg, in the 'county of Allespecification.

gheny and State of Pennsylvania, have' 1nlvented a new and useful Improvement in Electric Motors, ofwhich the following is a My invention relates to: `electric motors; and 1t has for its ob'ect to provide a machine of thls class which s allbe a'da ted for longitudinal adjustment of one o its members` with reference tothe other without impairing its efliciencyor materially affecting its operation as a motor.

In the accom anying drawings, Figure 1 is a Vlew, partial y in side elevation and partiall in section, of an induction-motor and a Jor an engine directly coupled together, the motor being so designed .and constructed as to embody my invention; and Fig. 2 is a view, partially in side elevation and partially in section, of a4 direct-current motor adapted4 for use in lieu of the4 alternating-current mo.- tor shown in Fig. 1.

The operation of Jordan en ines for the grinding of wood-pulp to be use in the Inanufacture of aper mvolves a gradual and lon- Agltudinal adiustment of the rotating member of the en ine as the dpulplwhich is operated upon is isinte ate eretoforesuch englnes have or inarily been operated vby steam-engines or water-Wheels, to which4 they were mechanically connected b belt orother suitable gearing, and longitu inal ad- .'ustment of thevrotatlng member has usually een effected by means of '.a suitable screw and hand-wheel. f i In case the Jordan engine is operated by means of a motor directlyconnected thereto it obviously' becomes necessary to ,either have a sliding connection between 1the motor `and the shaft of the Jordan en ine or the motor itself must be either who y or partially adjustable with the shaft, which serves to connect its rotatin member directly to the rotating member o the Jordan engine.

In order to effect the desired result, I propose to make one of the principal members of the motor of such lgreater length than the This block 8 may be a primarly stationary member.;

. emy invention is shown as applied te a Jordan engine, I desire tube understood that is more com rehensive in' and that its use is not to e restricted to any spe-- ciic service, provided its structxnal and han@ tional characteristics adapt it te oth u s Referring to Fig. lv of the drawing, Jordan 'engine 1 is shown as .incruste-rfi upon a suitable base-plate.2,vwhich also supports an induction-moter and bearing blocks er pi lars 4 and. 5 for the shatt- 6 of the rotating member (not shown) of the `Any suitable and approved means for the desired longitudinal adjustment oi the shaft 6 may be employed; but as one suitable means I have here shown the shaft pro vided 'with a setoi annular flanges er rings "i, which engage corresponding grooves in a block 8, that is mountedA in suitable guide- Ways in the bearing xillar or standard 5. justed longitudinally by means of a hand-Wheel 9 and .crew i0, as Will be readily understood from the drawin s Without further description.

hev motor 3 is provided with the usual sta. tionary laminated core li and a Winding l2,

'which may be connected to any suitable source of energy, (not slimvif) and the rotatable Secondary member comprises a suitable laminated core 13, which is mounted rigidly u on the shaft 6 and is provided 'with a suitm E, the

a le winding-14, the terminata oi which are connected in the usual manner with collectorrings-15, that are mounted on the outer end of the shaft 6, the Width. of the rings being such that corresponding brushes l? niayvremain in engagement therewith during longitudinal-adjustment of the shaft.

l It will be understood that any other ysuitl able type of Winding may he employedon the member-such, for instance, as

secondar the fami iar s uirrelecage type--and that thecharacter o the motor may be otherwise modiiied from what is shown Without depart*w infr from the invention.

iIf desired, a direct-current' motor may be ico , held-magnet pelar projections 19, and a conmutfator 20, which is of such length as t permit of continuous engagement tlfierewith of members o1Y 'member ha ing brush es 2 i 'dur the shet.

The d longitudinal adjustment of -ee in length between the t-Wo e motor Whether the motor be operate ly di eet eo rren ts or by alternating curren 1s preferably equal or substantially equal to the amount ot longitudinal adjustment of the engine-shaft that is etl'ected in order to Seo the desired relation of the engine meint( i claim as my iifwf'u'ition* 1 it dvnzimo-eleetrie machine comprising c'y drieal stationary and rotatable members h ling portions adapted to be actively mduetive, one oi' which is of greater length than the other and is longitudinally adjustable with reference thereto.

2. A cl3'naimreleotrie machine comprising Cylindrical stationary and rotatable mem bers, one oi which has a portion adapted to be actively inductivo that is of materially greater length than the corresponding portion of the other, in combination with 'means 'for longitudinaliyP adj Listing one of the members.

3. A dynamo-electric machine comprising stationery member,y a cylindrioal rotating core oi,t rlii'l'erent length stfttiimary member, end

the longer member lon- V Arence to the ether. combination with au engine and a ectrie .uioohizie the rotating memieh ec'tly' coupled and the rotating member of the motor having a core of greater length than that ot the stationaryv member, of-means for effecting longitudinal adjustment of the rotating member.

5. The .combination .ol a Jordan engine and means for effecting longitudinal adjustment of its shaft, of an electric motor having primary and secondary members, the cores of which are 'of unequal length, and having its secondary member directly coupled to the engine-shaft.

6. T he combination with an electric motor having cylindrical stationary and rotatable members, the cores ol' which ere oi unequal length, of a shaft driven by said motor and means for e'lteeting longitudinal adjustment of the shaft and the rotatable member of the motor.

7l A (lynamoleleotrio machine comprising cylindrical stationary and rotatable j members, the core of one of which is of materially greater lr igth than that of the other, in combination 1with means lor effecting longitudinal adjustment of one ol the members within the limits of the vcore of the other.

8. A dynamo-electrie machine comprising cylindrical stationarjr and rotatable members the core of the rotatable member of which is of materially greater length than that of the other, in combination with means for effecting longitudinal adjustment olr the rotatable member within the limits of the core of the stationarymember.

In testimony whereof l. have hereunto subscribed my name this 19th day of September, 1905. l

SAMUEL li. NICHOLSON. Witnesses:

E. T. jouaient,

Bimini MINES. 

